MALICIOUS — agenttesla-mem2.exe

MALICIOUS — agenttesla-mem2.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the Shufab family. 4 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

SHA-256: 77430a74b257214d8367467f5d7aa72977510980be7c8246cea5b77d186a6795
SHA-1: 449331f53aafb7cfb091b4febfe91749583db23e
MD5: e2e5503d05b95a93d258526655effc6c
imphash: f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep: 12288:5qIrEFD09leQEA49darfr3/2AbitnVYE96ltRi:5AFD1A498H2DN
TLSH: T1684AD589352C0B73C36259E60574D28B8DE360A33FED262049437D76D712EDB58A2B36
Submitted as: agenttesla-mem2.exe
File type: pe · Size: 460807 bytes
Verdict: malicious (98/100) · Family: Shufab

Detections (4 of 53 engines)

Microsoft Defender: Trojan:MSIL/Shufab.A!bit
Emsisoft (Emergency Kit): Gen:Variant.msilheracles.128405
Kaspersky (KVRT): HEUR:Trojan.Win32.Generic
Trellix Stinger (McAfee): Packed-VL!E2E5503D05B9

MITRE ATT&CK

Why this verdict

The malicious score of 98/100 is the fusion of 11 weighted signals:

Microsoft Defender flagged Trojan:MSIL/Shufab.A!bit (rule Trojan:MSIL/Shufab.A!bit) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Variant.msilheracles.128405 (rule Gen:Variant.msilheracles.128405) - engine signal, weight 0.55, confidence 0.85
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
1 behavioral detection(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
1 behavioral detection(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Extracted AgentTesla config (0 C2) - engine signal, weight 0.45, confidence 0.60
Extracted AgentTesla config (0 C2) - engine signal, weight 0.45, confidence 0.60
Embedded network infrastructure: 6.9.1.5, 17.18.7.0 - static signal, weight 0.35, confidence 0.60
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

7184 behavior events · 2 ATT&CK techniques · 7 dropped files.

Dropped files

3daa93b22601ecf778176338b1b5d845584cb99a8d67b2d0d224a64eeaad30b6 - 3daa93b22601ecf778176338b1b5d845584cb99a8d67b2d0d224a64eeaad30b6
3ee8acf49be6d718f214e22396cca984b869e64fa82980246cadcbb7e2c79556 - 3ee8acf49be6d718f214e22396cca984b869e64fa82980246cadcbb7e2c79556
8af636c17bd33a8fc95c7f4cf018cec7f9da6f30e197490ad21c3ba50d3edd4a - 8af636c17bd33a8fc95c7f4cf018cec7f9da6f30e197490ad21c3ba50d3edd4a
cb3f7745f4c127cf83268400af0843b376f2947ef0bfc52af63b92c36dcfb1f1 - cb3f7745f4c127cf83268400af0843b376f2947ef0bfc52af63b92c36dcfb1f1
de2a0403854c6bc7b7216269fc08ec7dd56548d01961982d9d6318ee7d9d138c - de2a0403854c6bc7b7216269fc08ec7dd56548d01961982d9d6318ee7d9d138c
92e950c47148ba8e7d3c65d0f8a835fe3106c8a8892497ed2e41db213c5c30a1 - 92e950c47148ba8e7d3c65d0f8a835fe3106c8a8892497ed2e41db213c5c30a1
14bdcb3dfae1adf59138170b6eed571c837256a7dcc39e0e97ac53449909fe98 - 14bdcb3dfae1adf59138170b6eed571c837256a7dcc39e0e97ac53449909fe98

Embedded domains

searchapp.bundleassets.example
www.msftconnecttest.com
config.edge.skype.com
www.bing.com
dns.msftncsi.com
fd.api.iris.microsoft.com
aps.prod.windows.com
tas02.sls.update.microsoft.com
ctldl.windowsupdate.com
to-do.microsoft.com
settings-win.data.microsoft.com
watson.events.data.microsoft.com
edge.microsoft.com
fs.microsoft.com

Embedded IP addresses

6.9.1.5
17.18.7.0

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report